Home / 95,309.10-131,140.35-78,250.50

Finding the Fourth Proportional to 95,309.10, 131,140.35 and 78,250.50

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Solution

The fourth proportional to 95,309.10, 131,140.35 and 78,250.50 is: 107,668.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,309.10 : 131,140.35 = 78,250.50 : x
  2. Step 2: Convert to fraction form
    95,309.10/131,140.35 = 78,250.50/x
  3. Step 3: Cross multiply
    95,309.10x = 131,140.35 × 78,250.50
  4. Step 4: Simplify right side
    95,309.10x = 10,261,797,957.68
  5. Step 5: Solve for x
    x = 10,261,797,957.68/95,309.10
  6. Step 6: Final answer
    x = 107,668.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.